Commit 802a76af authored by Oleksij Rempel's avatar Oleksij Rempel Committed by David S. Miller
Browse files

net: selftests: add MTU test 



Test if we actually can send/receive packets with MTU size. This kind of
issue was detected on ASIX HW with bogus EEPROM.

Signed-off-by: default avatarOleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9c267095

net/core/selftests.c

+12 −0
Original line number Diff line number Diff line
@@ -318,6 +318,15 @@ static int net_test_phy_loopback_udp(struct net_device *ndev) 
	return __net_test_loopback(ndev, &attr);

}



static int net_test_phy_loopback_udp_mtu(struct net_device *ndev)

{

	struct net_packet_attrs attr = { };



	attr.dst = ndev->dev_addr;

	attr.max_size = ndev->mtu;

	return __net_test_loopback(ndev, &attr);

}



static int net_test_phy_loopback_tcp(struct net_device *ndev)

{

	struct net_packet_attrs attr = { };
@@ -344,6 +353,9 @@ static const struct net_test { 
	}, {

		.name = "PHY internal loopback, UDP    ",

		.fn = net_test_phy_loopback_udp,

	}, {

		.name = "PHY internal loopback, MTU    ",

		.fn = net_test_phy_loopback_udp_mtu,

	}, {

		.name = "PHY internal loopback, TCP    ",

		.fn = net_test_phy_loopback_tcp,